Manchester United midfielder Fred is tipping Alejandro Garnacho for greatness.
Both players scored in their FA Cup win against West Ham.
"I'm proud to be a part of this squad because everyone is ready to work, to change the game, and it was a big win today," he told the club's official website.
"We played very well after we conceded, we came back and won this game. It's important, we need to keep going.
"Garnacho had a very good game today, a good score, and he had nice play. He's a young player. He will be one of the best players in the world, for sure.
"Today, he scored and played well and he needs to keep going."